Installing 7-Way Wiring Connector to Trailer For Reverse Light Function
Question:
Hi. I bought this 7 round harness for the car and the trailer and hooked up everything but the backup lights. Now I went back to hook up the backup light, which has red/black/white wires. I got the purple wire on the vehicle side hooked to a backup light. It works but what color is the center pin wire on the trailer? There isn’t a purple wire on the trailer harness. Thanks.
asked by: Michael J
Expert Reply:
The center pin on your 7-way on the trailer side is the reverse light function. These can be different colors, which I get is confusing, but you will need to do some deductive reasoning or use a circuit tester to determine the function and color. For instance the yellow wire on the Hopkins # H20044 or the Bargman # 50-67-103 is the reverse wire which isn't the norm because the yellow wire is typically the left turn and left brake wire. I've attached a photo and an article to assist.
You can use a circuit tester like # PTW2993 to determine the wire function when connected to your vehicle side 7-way.
Products Referenced in This Question
7-Way Molded Connector w/ 15' Cable - Trailer End
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 11 - 20 Feet Long
- Plug and Lead
- 7 Round - Blade
- Bargman
more information >
Product Page this Question was Asked From
7-Way Molded Trailer Wire Connector, 6' Long
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 6 - 10 Feet Long
- Plug and Lead
- 7 Round - Blade
- Hopkins
more information >
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